27 Jun
1999
27 Jun
'99
3:35 a.m.
<KIM bus - used on the KIM believe it or not
also the SYM-1!
<The book also includes a few x to S-100 translator designs.
KIM to s100 would be useful.
<VAX BI - hmm, that nomenclature doesn't look right, but you may
< remember this move by DEC to use a non-open bus design
BI is open but, was designed for high speed and multiple processesors.
The bus requires a chipset to communucate over it and while it was supposed
ot be widely available it was never widely adopted.
There was also CI (cluster interconnect) for multiple vaxen and storage.
Allison
27 Jun
27 Jun
1:59 p.m.
In message <199906271535.AA28999(a)world.std.com>om>, Allison J Parent writes:
<The book also includes a few x to S-100 translator
designs.
KIM to s100 would be useful.
The book includes the schematics and a brief technical description
of the KIMSI, a commercial KIM to S-100 product. It's covered in
Chapter 15, "6502/6800 to S-100 Conversion."
<VAX BI - hmm, that nomenclature doesn't look
right, but you may
< remember this move by DEC to use a non-open bus design
BI is open but, was designed for high speed and multiple processesors.
The bus requires a chipset to communucate over it and while it was supposed
ot be widely available it was never widely adopted.
It was open? I could swear I remember a really big stink in
the DEC press when the BI was introduced. Of course, this
wouldn't be the first time bit-rot affected my historical
claims.
Brian
28 Jun
28 Jun
12:20 a.m.
On Sun, 27 Jun 1999 blstuart(a)bellsouth.net wrote:
In message <199906271535.AA28999(a)world.std.com>om>,
Allison J Parent writes:
Would it be possible to get a copy of the schematic and minimal text?
<The book also includes a few x to S-100
translator designs.
KIM to s100 would be useful.
The book includes the schematics and a brief technical description
of the KIMSI, a commercial KIM to S-100 product. It's covered in
Chapter 15, "6502/6800 to S-100 Conversion." It was open? I could swear I remember a really big
stink in
the DEC press when the BI was introduced. Of course, this
wouldn't be the first time bit-rot affected my historical
claims.
It was open but DEC was the sole source for the interface/protocal
chipset. Hence the stink. It' was never actully locked as a few years
later there was both a second source and a "open" spec available. The
fact of the matter is most vendor specific buses tend to be somewat
closed if by virtue of lack of adoption by third parties.
Allison
7:33 a.m.
New subject: BI Bus
It was open?
I could swear I remember a really big stink in
the DEC press when the BI was introduced. Of course, this
wouldn't be the first time bit-rot affected my historical
claims.
It was open but DEC was the sole source for the interface/protocal
chipset. Hence the stink. It' was never actully locked as a few years
later there was both a second source and a "open" spec available. The
fact of the matter is most vendor specific buses tend to be somewat
closed if by virtue of lack of adoption by third parties.
Allison
2:37 p.m.
In message <Pine.SGI.3.95.990628081529.14266A-100000(a)world.std.com>om>, allisonp@w
orld.std.com writes:
Ah, that makes sense. I guess after being spoiled by the well
and widely documented Unibus and Q-bus anything less seemed like
they wanted to keep it all to themselves.
Brian
On Sun, 27 Jun 1999 blstuart(a)bellsouth.net wrote:
Sure. Send me you address and I'll try to make a copy at work
tomorrow.
The book includes the schematics and a brief
technical description
of the KIMSI, a commercial KIM to S-100 product. It's covered in
Chapter 15, "6502/6800 to S-100 Conversion."
Would it be possible to get a copy of the schematic and minimal text? It was open?
I could swear I remember a really big stink in
the DEC press when the BI was introduced. Of course, this
wouldn't be the first time bit-rot affected my historical
claims.
It was open but DEC was the sole source for the interface/protocal
chipset. Hence the stink. It' was never actully locked as a few years
later there was both a second source and a "open" spec available. The
fact of the matter is most vendor specific buses tend to be somewat
closed if by virtue of lack of adoption by third parties.
29 Jun
29 Jun
12:18 a.m.
The book includes the schematics and a brief technical
description
of the KIMSI, a commercial KIM to S-100 product. It's covered in
Chapter 15, "6502/6800 to S-100 Conversion."
Would it be possible to get a copy of the schematic and minimal text? Ah, that makes sense. I guess after being spoiled by
the well
and widely documented Unibus and Q-bus anything less seemed like
they wanted to keep it all to themselves.
That and they were trying to recover some of the development costs. I
agree with the other, dumb move. DEC suffered from occasional markeing
managers that were plain brain impaired.
Allison
9270
days inactive
9272
days old
5 comments
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allisonp＠world.std.com -
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pechter＠pechter.dyndns.org